National Solidarity Party of Peru

The National Solidarity Party (PSN) is a liberal-conservative political party in Peru that was founded in 1999 to support presidential candidate Luis Castaneda Lossio. Castaneda, a former Popular Action of Peru politician, led the party to victory in the Lima mayoral elections, serving as Mayor from 2003 to 2010 and again from 2015. In 2010, it formed the "National Solidarity Alliance" with Cambio 90 and other center-right and right-wing parties.